From: Robert Klemme <shortcutter@...>
Date: 2012-12-08T19:54:09+09:00
Subject: Re: Rows and columns in a text file.

On Fri, Dec 7, 2012 at 4:24 AM, 7stud -- <lists@ruby-forum.com> wrote:
> Joao Silva wrote in post #1088123:

> results = []
> rows = 9
> columns = 8

Hey, that's cheating. :-) The algorithm must determine these from the input.

Two more solutions

puts "-- 1 --"

lines = []
max = 0

File.foreach "t" do |line|
  line.chomp!
  lines << line
  max = [max, line.length].max
end

max.times do |i|
  puts lines.map {|l| l[i] || ' '}.join
end

puts "-- 2 --"

lines = []

File.foreach "t" do |line|
  line.chomp!
  line.each_char.each_with_index do |c, i|
    (lines[i] ||= '') << c
  end
end

puts lines


Kind regards

robert



--
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